Sewer-flushing apparatus.



No. 866,244. y PATENTED SEPT. 1v, 1907.

E. L. WAGNER. SEWER ELUSEING APPARATUS.

APPLICATION FILED APEL.. 1l, 1907.

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EDWARD L. WAGNER, OF PORT WASHINGTON, NEW YORK.

SEWER-FLUSHING APPARATUS.

Specification of Letters Patent. h

Patented Sept. 17, 1907.

Application filed April 11,1907. Serial No. 367,523.

To all whom it may concern:

Be it known that I, EDWARD L. WAGNER, a citizen of the United States ofAmerica, and a resident of Port Washington, Nassau county, State of NewYork, have invented certain new and useful Improvements inSewer-Flushing Apparatus, of which the following is a specification.

My invention comprises an automatic siphon device for flushing sewers orfor the rapid automatic discharge of sewage or water from filter worksof various kinds including septic tanks, contact beds, percolatingfilters, sand lters, die.

The accompanying drawing represents a vertical sec* tion of a flush tankwith the siphon set therein.

The fiush tank II may be built of any material such as brick, concrete,or stone, die. it being necessary only to secure a tight compartment. Iis a constantly open fluid inlet thereto. The siphon as usuallyconstructed is of cast iron, although other material may be used, viz:terra cotta or cement. The siphon consists of an intake leg A, which isof varying length -to suit the draft of the siphon used. The bend B isprovided with two bells, one b, for the intake leg A, and the other ZY,for the discharging leg O. These two legs are leaded into thisV bend B.The bend is of varying diameter commencing at 4 and ending at 3. Thesebeing the sizes indicated on this drawing, although the capacity ofdischarge may be increased or decreased by increasing or decreasing thebore of the pipe and bend. The vent pipe D, whose function is to allowthe entrance of air and break the siphon is introduced into the bend,this consisting of a wrought iron pipe with fittings comprising theT-coupling d, in one end of which is inserted a plug P, to permitcleaning upon occasion, if necessary.

Plate E consists of a casting with a bell F, as shown, and is set in thefloor of the tank E and serves as a cover for the pot I. This bell Ftakes the discharge leg O, the same being leaded in so that both legsand plate E form one part, being assembled at the foundry. The variousdrafts of this siphonare obtained by fitting differing lengths of legsbetween the iron bend B and plate E. On the under side of the plate, thedischarging leg is produced at G, as shown in the drawing, to reachbelow the water seal in the pot. Plate E is provided with a flange and anumber of bolt holes. It is fastened to the pot by threaded bolts e, e,and nuts e, e. This offers the very great advantage of permitting thelegs and cover to be removed and a different draft combination usedinstead. The pot .I is an iron casting with a flange provided to receiveplate E. This pot has one opening O for the discharge pipe, and is soarranged that it keeps a water seal over the lower end of the eX-tension G of plate E.

amount.

M is an overflow pipe located in the flush tank II, and connecting atits lower end with the sewer pipe L. The upper end of this overflow pipeextends to a level above that of the bend B of the siphon.

I represents a drainage hole in the plate E.

The operation of my invention is as follows: Water flowing into theflush tank through the inlet I raises the level of the fluidmass thereinuntil it flows through the bend B down into the pot J. Accumulating inthis pot, it closes up the lower end of the extension G n ofthedischarge leg ofthe siphon and produces a growing back pressure of airwhich raises the level of the fluid in the bend B of the siphon by aconsiderable When the siphon is filled up nearly solid `with fluid, thesiphon action begins in the Well known way and a rapid flow of materialis discharged into the pot .T and through the sewer L, flushing the sameout. When the level of material in the flush tank reaches the lower endof the vent pipe D, air is admitted to the bend B ofthe siphon, whichbreaks the siphon and stops the flow. If there were no drainage hole I,it will be seen that the flush tank might be nearly lled and then if theinflow ceased, as frequently happens in the case of sewer systems ofcountry houses which are left empty during the winter, the materialwould remain in the liush tank and on freezing would be liable to breakthe siphon. The drainage hole I prevents any such long continuingaccumulation, and the disadvantages resulting therefrom. In case thesiphon is stopped up for any reason, the excess material will escapethrough the overflow pipe M. In case the vent pipe D becomes stopped up,the plug P may be removed, whereupon an opening will be formed in linewith the bore of the main portion of the vent pipe so that it can bereadily cleaned by inserting arod. In case of occasion to repair thesiphon or change its draft, the cover E of the siphon may be easilyremoved by loosening the belts and nuts c, e', whenfthe joints can beheated, the lead melted and the various sections of the siphon separatedand new sections of the same or different length substituted, or a newcover with complete siphon giving desired draft substituted.

The advantages of my invention comprise the ease in setting up andtaking down of the siphon; convenience in changing the draft bysubstituting legs of different lengths, all without removing the pot .Ifrom the concrete; ease of cleaning the vent pipe D and the drainageaction by which the long continued standing of matter in the flush tank,when the sewer system is out of use, is avoided.

Having, therefore, described my invention, 1 claim:

1. In a sewer Iiushing apparatus, the combination of a flush tank, a'potset in the bottom thereof and extending below the same, a removablecover for said pot provided with a discharging leg ,extending downwardand a bell extending upward all made integrally with said cover, and asiphon having its discharge leg set in said bell.

2. In a sewer lushing apparatus, the combination of a flush tank, a potset in the bottom thereof and extending below the same, a removablecover for said pot provided with a discharging leg extending downwardand a bell extending upward all made integrally with said cover, and asiphon having its discharge leg set in said bell, the intake leg of saidsiphon being of larger diameter than the discharge leg.

3. In a sewer flushing apparatus, the combination of a flush tank, a potset in Athe bottom thereof and extending below the same, a removablecover for said pot provided with a discharging leg extending downwardand a bell extending upward all made integrally with said cover, screwthreaded bolts and nuts for fastening said cover to said pot, and asiphon having its discharge leg set in said bell.

4. In a sewer flushing apparatus, the combination of a flush tank, a potextending below said tank, a cover for the pot forming a portion of thebottom of thetank, a siphon in the flush tank having a dischargeconnection passing through the pot cover into the pot, and a leakageopening through said cover outside of the siphonf Signed at New York, N.Y. this 27th day of March 1907.

EDWARD L. WAGNER.

Witnesses Gmo. L. ROBINSON, M. C. BRUNING.

